| 1 | /* |
| 2 | * Copyright 2016 - Philippe Proulx <pproulx@efficios.com> |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 5 | * of this software and associated documentation files (the "Software"), to deal |
| 6 | * in the Software without restriction, including without limitation the rights |
| 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 8 | * copies of the Software, and to permit persons to whom the Software is |
| 9 | * furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 20 | * SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #define BT_COMP_LOG_SELF_COMP (file->self_comp) |
| 24 | #define BT_LOG_OUTPUT_LEVEL (file->log_level) |
| 25 | #define BT_LOG_TAG "PLUGIN/SRC.CTF.FS/FILE" |
| 26 | #include "logging/comp-logging.h" |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | #include <sys/types.h> |
| 30 | #include <sys/stat.h> |
| 31 | #include <unistd.h> |
| 32 | #include <glib.h> |
| 33 | #include "file.h" |
| 34 | |
| 35 | BT_HIDDEN |
| 36 | void ctf_fs_file_destroy(struct ctf_fs_file *file) |
| 37 | { |
| 38 | if (!file) { |
| 39 | return; |
| 40 | } |
| 41 | |
| 42 | if (file->fp) { |
| 43 | BT_COMP_LOGD("Closing file \"%s\" (%p)", |
| 44 | file->path ? file->path->str : NULL, file->fp); |
| 45 | |
| 46 | if (fclose(file->fp)) { |
| 47 | BT_COMP_LOGE("Cannot close file \"%s\": %s", |
| 48 | file->path ? file->path->str : "NULL", |
| 49 | strerror(errno)); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | if (file->path) { |
| 54 | g_string_free(file->path, TRUE); |
| 55 | } |
| 56 | |
| 57 | g_free(file); |
| 58 | } |
| 59 | |
| 60 | BT_HIDDEN |
| 61 | struct ctf_fs_file *ctf_fs_file_create(bt_logging_level log_level, |
| 62 | bt_self_component *self_comp) |
| 63 | { |
| 64 | struct ctf_fs_file *file = g_new0(struct ctf_fs_file, 1); |
| 65 | |
| 66 | if (!file) { |
| 67 | goto error; |
| 68 | } |
| 69 | |
| 70 | file->log_level = log_level; |
| 71 | file->self_comp = self_comp; |
| 72 | file->path = g_string_new(NULL); |
| 73 | if (!file->path) { |
| 74 | goto error; |
| 75 | } |
| 76 | |
| 77 | goto end; |
| 78 | |
| 79 | error: |
| 80 | ctf_fs_file_destroy(file); |
| 81 | file = NULL; |
| 82 | |
| 83 | end: |
| 84 | return file; |
| 85 | } |
| 86 | |
| 87 | BT_HIDDEN |
| 88 | int ctf_fs_file_open(struct ctf_fs_file *file, const char *mode) |
| 89 | { |
| 90 | int ret = 0; |
| 91 | struct stat stat; |
| 92 | |
| 93 | BT_COMP_LOGI("Opening file \"%s\" with mode \"%s\"", file->path->str, mode); |
| 94 | file->fp = fopen(file->path->str, mode); |
| 95 | if (!file->fp) { |
| 96 | BT_COMP_LOGE("Cannot open file \"%s\" with mode \"%s\": %s", |
| 97 | file->path->str, mode, strerror(errno)); |
| 98 | goto error; |
| 99 | } |
| 100 | |
| 101 | BT_COMP_LOGI("Opened file: %p", file->fp); |
| 102 | |
| 103 | if (fstat(fileno(file->fp), &stat)) { |
| 104 | BT_COMP_LOGE("Cannot get file information: %s", strerror(errno)); |
| 105 | goto error; |
| 106 | } |
| 107 | |
| 108 | file->size = stat.st_size; |
| 109 | BT_COMP_LOGI("File is %jd bytes", (intmax_t) file->size); |
| 110 | goto end; |
| 111 | |
| 112 | error: |
| 113 | ret = -1; |
| 114 | |
| 115 | if (file->fp) { |
| 116 | if (fclose(file->fp)) { |
| 117 | BT_COMP_LOGE("Cannot close file \"%s\": %s", file->path->str, |
| 118 | strerror(errno)); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | end: |
| 123 | return ret; |
| 124 | } |